Read-only default instance of MultiTermQuery.ConstantScoreAutoRewrite, with ConstantScoreAutoRewrite.setTermCountCutoff(int) set to
ConstantScoreAutoRewrite.DEFAULT_TERM_COUNT_CUTOFF
and ConstantScoreAutoRewrite.setDocCountPercent(double) set to
ConstantScoreAutoRewrite.DEFAULT_DOC_COUNT_PERCENT.